Assembling the Y axis side rails

I started by buying a non-ferrous metal blade for my table saw / mitter saw, this blade is expensive but worth it

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After making sure my saw was straight, I proceeded to cut both Y axis extrusions using a stopper on the saw to ensure both side will have the exact same length, I sprayed a bit of WD-40 for lubrication.

I then proceeded to tap the ends of the extrusions with 1/4-20 tap.  My tap wasn’t long enough to tap all the way so I resorted to a 5/16 hole 1/4″ deep following with tapping.  I used 3-in-1 oil for lubrication and cleaned up with compressed air.

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I then cut the linear rail to 1425mm using a grinder (the rail is case-hardened and cannot be sawed).

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